zisseler



2 ,Shee'ts-Sheet 1.

(No Model.)

Patented May 6 2 Sheets-Sheet 2.

n. ZISSELER. V MACHINE FOR MAKING CEMENT TUBES.

(No Model.)

Patented May 6, 1890.

UNITED STATES ATENT UFFICE.

DAVID ZISSELER, or WETZLAR, PRUSSIA, GERMANY.

MACHINE FOR MAKING CEMENT TUBES.

SPECIFICATION forming part of Letters Patent No. 427,388, dated May 6, 1890.

Application filed November '7, 1887. Serial 110,254,531- (No model.) Patented in Germany July 22, 1887, No. 40,173.

To ctZZ whom. it may concern.-

Be it known that 1, DAVID ZISSELER, of Wetzlar, in the Kingdom of Prussia and German Empire, have invented a new and useful Improved Machine for Producing Cement Tubes with Thin Valls, whereby the cement is deposited on wire-gauze, (no patents being obtained by me anywhere for this invention, save in Germany, No. 40,173, dated July 22, 1887,) of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to the construction of thin-walled cement tubes with wiregauze laid in, so as to facilitate and render practicable the manufacture of such tubes.

Figure 1 shows a frontview of the machine used to make tubes with gauze. Fig. 2 shows a side view. Fig. 3 shows the connection of the two ends of the cylinder a, on which the cement for the tubes to be made is carried,in front view, Fig. at being an end view of same.

,Fig. 5 shows the cog-wheel of the drum on which the wire-netting is wound in side view, and Fig. 6 shows a section thereof. Fig. 7 represents a section of the disk, which is fastened at both ends of the cylinder a, which disk serves to limit the length and breadth of the layer of cement carried on the cylinder 64. Fig. 8 isthe front view of this disk. Fig. 9 shows the mode of attachment of a strip of zinc G by the spring H, which strip of zinc is used in setting a socket on the cement tube.

Fig. 10 shows the arrangement of a second disk D in section, which also serves for setting a socket on the cement tube. Fig. 11 shows a cross-section of a complete cement tube. Fig. 12 depicts the mode of attachment of the wire-netting on the cylinder by means of a rail w and a clamp 'v.

This locking apparatus consists of two wedge-shaped metal or wood laths b b, fitted to the long sides of the sheet of zinc, and each having two screws or rivet-bolts o c, which serve to receive the connecting plates d d, Fig. 3, which are fitted on a third lath I), also ofwedge shape.

Three wedge-laths b b I) serve to lock the cylinder and have the advantage that they can be opened or closed in a moment by a handle.

Upon each of the two ends of the cylinder (1, thus formed a cast-iron disk 6, provided with a central retangular aperture fand a projecting bordering e, is set Figs. 7 and 8. This projecting bordering gives the thickness of the wall ofthe cement tube to be made.

Through the rectangular apertures fin the two disks e a rectangular beam 9 is placed, Fig. 1, near the ends of which the disks 6 are immovably wedged by wedges h. The cylinder thusformed, the external diameter of which corresponds to the internal diameter of the cement tube to be formed, is now placed on the machine (shown in Figs. 1 and 2) in such a way that the two ends of the beam g are caught by fork-shaped carriers 1 the shafts 7c is of which rest in the bearings Z of the machine-frame m.

On the carriers 01 t adj usting-screws n n are fitted, which go through the beam g and hold the latter firm, so that the cylindera is set in rotation by turning the crank 0 by means of the spirals p and the toothed wheel q, Fig. 1, fitted onto the shaft is. At the back part of the machine-frame m a shaft 1" is fitted, upon which the wiregauze s, to be laid in the cement tubes, is rolled. Upon the shaft 1' there is also another toothed disk 4, on the nave of which a pulley m runs loosely, and is held by a pawl, which gears with the toothed disk.

The aforesaid wire-gauze s is carried over a roller u, resting upon two side cheeks t t of the machine-frame and the end of the gauze s by means of clamps 1;, Figs. 7 and 8, and by means of arail w, extending over the entire length of the cylinder at, Fig. 2, is screwed on tight to the two end disks 6 of the cylinder a.

The process of manufacture of the cement pulley 00, it will be let down again by releasing the catch. When the catch is recaught, the tension of the wire-gauze recommences. By means of the crank z the wire-gauze is drawn up onto the shaft 7". The inner cement wall being 110W formed, the gauze is cut off, the two ends are fastened together, the clamps t' are released, and the lath w is taken off. To form the outer tube-wall, a second layer of cement is now laid on of such thickness that the layer of cement reaches the same height as the border disk 6. The process above described is then repeated. In order that during the revolution of the cylinder the cement does not fall off by shaking, an endless cloth B, running over three rollers a, is arranged. The two upper rollers a rest in adjustable bearings O O and the lower roller a rolls freely over the cloth B. By the Weight of the latter roller the cloth is pressed between the rollers onto the layer of cement, and thus prevents the stuff from falling off. It, now, a socket is to be made on the tube before placing the cylinder a in the machine, the corresponding larger socket-disk D, Figs. 9 and 10, and another ring D are pressed, by means of awed ge E, against the disk 6', which rests on the beam g. Now a leather strip of suitable thickness F, two centimeters wide, is laid around the disk 6, and upon this again is laid a strip of zinc G, held together by springs II. The laying-of the cement layer to half the thickness of the wall, the winding of the wire-gauze, and the placing of the outer cement layer are performed in the alreadydescribed way also when making sockets. If it is desired to make tubes of greater solidity, and for that purpose to put in more layers of wire-gauze, the gauze is not cut off until after the second or third revolution of the cylinder, (according to the number of layers desired,) and then the outer cement layer is put on.

WVhat I claim, and desire to secure by Letters Patent of the United States, is-'- 1. In combination with the roller, the independent movable disks e, having bearing-surfaces for the roller, and having flanges e to afford a bearing for the cement.

2. In combination with the roller, the end disks having clamps o for the wire-gauze, substantially as described.

3. In combination, the roller a, the end disks 6, having bearing-surfaces for supporting said roller, the beam g, for supporting the disks, the shafts 70, provided with clamps for engaging the beam, and means for revolving the shaft 7c, substantially as described.

4. In combination, the roller, the end disks 6 for said roller, and the supplemental end disks D, having a bearing for the cement and being of larger diameter than the disks e, substantially as described.

5. In combination, the roller a, the end disks 6, the supplemental disks D of larger diameter, and the strip G, with clamp to atford a bearing'for the cement, substantially as described.

6. In combination, the roller for receiving the cement, means for supporting and revolving the same, and means for preventing the cement from falling therefrom during its revolution, consisting of the tension-apron B, passing over suitable rollers and beneath the roller, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

DAVID ZISSELER. Vv'itnesses:

J EAN GRUND, J AOOB MUELLER. 

